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-rw-r--r--src/boost/libs/proto/test/noinvoke.cpp116
1 files changed, 116 insertions, 0 deletions
diff --git a/src/boost/libs/proto/test/noinvoke.cpp b/src/boost/libs/proto/test/noinvoke.cpp
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+++ b/src/boost/libs/proto/test/noinvoke.cpp
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+///////////////////////////////////////////////////////////////////////////////
+// noinvoke.hpp
+//
+// Copyright 2008 Eric Niebler. Distributed under the Boost
+// Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/proto/core.hpp>
+#include <boost/proto/transform/make.hpp>
+#include <boost/type_traits/add_pointer.hpp>
+#include <boost/type_traits/remove_pointer.hpp>
+#include <boost/test/unit_test.hpp>
+namespace proto=boost::proto;
+using proto::_;
+
+struct Test
+ : proto::when<
+ _
+ , proto::noinvoke<
+ // This remove_pointer invocation is bloked by noinvoke
+ boost::remove_pointer<
+ // This add_pointer invocation is *not* blocked by noinvoke
+ boost::add_pointer<_>
+ >
+ >()
+ >
+{};
+
+struct Test2
+ : proto::when<
+ _
+ // This add_pointer gets invoked because a substitution takes place
+ // within it.
+ , boost::add_pointer<
+ proto::noinvoke<
+ // This remove_pointer invocation is bloked by noinvoke
+ boost::remove_pointer<
+ // This add_pointer invocation is *not* blocked by noinvoke
+ boost::add_pointer<_>
+ >
+ >
+ >()
+ >
+{};
+
+template<typename T, typename U>
+struct select2nd
+{
+ typedef U type;
+};
+
+struct Test3
+ : proto::when<
+ _
+ // This add_pointer gets invoked because a substitution takes place
+ // within it.
+ , select2nd<
+ void
+ , proto::noinvoke<
+ // This remove_pointer invocation is bloked by noinvoke
+ select2nd<
+ void
+ // This add_pointer invocation is *not* blocked by noinvoke
+ , boost::add_pointer<_>
+ >
+ >
+ >()
+ >
+{};
+
+
+void test_noinvoke()
+{
+ typedef proto::terminal<int>::type Int;
+ Int i = {42};
+
+ BOOST_MPL_ASSERT((
+ boost::is_same<
+ boost::result_of<Test(Int)>::type
+ , boost::remove_pointer<Int *>
+ >
+ ));
+
+ boost::remove_pointer<Int *> t = Test()(i);
+
+ BOOST_MPL_ASSERT((
+ boost::is_same<
+ boost::result_of<Test2(Int)>::type
+ , boost::remove_pointer<Int *> *
+ >
+ ));
+
+ boost::remove_pointer<Int *> * t2 = Test2()(i);
+
+ BOOST_MPL_ASSERT((
+ boost::is_same<
+ boost::result_of<Test3(Int)>::type
+ , select2nd<void, Int *>
+ >
+ ));
+
+ select2nd<void, Int *> t3 = Test3()(i);
+}
+
+using namespace boost::unit_test;
+///////////////////////////////////////////////////////////////////////////////
+// init_unit_test_suite
+//
+test_suite* init_unit_test_suite( int argc, char* argv[] )
+{
+ test_suite *test = BOOST_TEST_SUITE("test proto::noinvoke");
+
+ test->add(BOOST_TEST_CASE(&test_noinvoke));
+
+ return test;
+}